Wilf has an irresistable innocence and a never ending flow of bright ideas. His chubby body and shiny nose make him a compelling character - And being the only witch's dog in the world makes him rather special, too. Wilf offers to make supper for Weenie and Miss Woz. But then Sly and Tricky find out what he is up to and cast a spell on the magic jelly he’s bought for dessert. The jelly turns into a monster jelly…